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#1
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Alternatives for ground (for PC's)
Hello,
I am starting to suspect "ground" for PC's does more damage than good. Perhaps the "ground" leads to a "backdoor" for electricity to do damage. Therefore instead of dumping energy into the ground wire an alternative could be found. For example some kind of circuit which transfer the energy into heat. So that the energy is dumped into the system's air. This way PC's no longer require a "ground" and there is no longer a "backdoor" for damage. Bye, Skybuck. |
#2
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Alternatives for ground (for PC's)
This alternative would be especially usefull for environments which don't
have a ground. Like my living room or perhaps international space station ? Does ISS have a ground ? How about laptops ? Do they have a ground when not plugged in ? How about iPads or iPhones ? Bye, Skybuck =D |
#3
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Alternatives for ground (for PC's)
Oh really,
Sounds like you making a joke ?! But just in case your are not, provide some proof/documentation of these "facts" ! It does raise the interesting question, why PC's need ground and everything else does not. I was thinking maybe the excessive stuff is stored inside and later dispossed when charging. But what if a device would not need any charging for a long time ? Bye, Skybuck. |
#4
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Alternatives for ground (for PC's)
In case you are making a joke I will add to it:
"It is not disposed it is exploded into your head when the battery explodes". Bye, Skybuck. "Mark Thorson" wrote in message ... Skybuck Flying wrote: How about laptops ? Do they have a ground when not plugged in ? They use the human body. The ground is that warm spot on the bottom. How about iPads or iPhones ? The ground is in the earpiece. Excess electricity is passed into your head. |
#5
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Alternatives for ground (for PC's)
Skybuck Flying wrote:
How about laptops ? Do they have a ground when not plugged in ? They use the human body. The ground is that warm spot on the bottom. How about iPads or iPhones ? The ground is in the earpiece. Excess electricity is passed into your head. |
#6
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Alternatives for ground (for PC's)
In article me.nl,
Skybuck Flying wrote: It does raise the interesting question, why PC's need ground and everything else does not. Your assumption ("everything else does not") is false. Many other sorts of device do (for legal and safety reasons) require a ground connection. Here in the U.S., most major appliances do require three-wire grounded power cords. Here's the short version, as it applies to power-mains circuitry in the United States. Details may differ for mains connection rules in other countries. An appliance generally requires a safety-ground connection, if it has a metal chassis or other electrically-conductive exterior, which can be touched by a human. This chassis is required to be connected to a safety ground - one which returns to the ground connection at the power distribution panel, and which does not carry any portion of the normal load-return current. This safety grounding of the chassis is intended to protect humans against shock, if an electrical fault develops inside the device (e.g. a loose wire) that could create an electrical connection between the power wiring and the chassis. Without a safety ground to the chassis, this sort of fault will result in a "hot" chassis. If a person were to touch the chassis, at the same time that they were touching a grounded object (or standing in water, or etc.), their body would complete the circuit and AC power would flow through their body. The amount of current needed to kill a person is *far* too small to blow a fuse, and thus the person could die. Grounding the chassis prevents this. If a "weak" connection between the power wiring and the chassis occurs (e.g. low-level leakage), the safety ground will hold the chassis very near to the ground voltage level, reducing the risk of electrical shock by quite a lot. If a real short-circuit to the chassis occurs, the grounding of the chassis will either cause the fuse to blow, or will result in a loud SPLUT-BANG! which will vaporize the shorting wire, or both. Appliance do not require a safety ground if they're designed in a way which prevents an internal fault from creating a hot chassis. One way is often referred to as a "double-insulated" design... the wires themselves are insulated, and the device's outer shell consists only of nonconductive (insulated) materials. In the U.S., you can also do away with the need for a safety ground (in some cases) by using a "ground-fault interruptor" - a device which detects the fact that "current is flowing where it should not" and disconnects the power before injury can occur. Desktop and server PCs usually require safety grounds because they are not double-insulated... they have exposed metal on their backplanes (and often the case is metal) and their internal power supplies have metal cases which are connected directly to the outer case. Laptop PCs can sometimes operate without a safety ground, because they have nonconductive (plastic) cases, and because the power entering the PC is at a low enough voltage that it does not create a significant shock hazard. -- Dave Platt AE6EO Friends of Jade Warrior home page: http://www.radagast.org/jade-warrior I do _not_ wish to receive unsolicited commercial email, and I will boycott any company which has the gall to send me such ads! |
#7
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Alternatives for ground (for PC's)
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#8
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Alternatives for ground (for PC's)
"Dave Platt" wrote in message news In article me.nl, Skybuck Flying wrote: It does raise the interesting question, why PC's need ground and everything else does not. " Your assumption ("everything else does not") is false. " My assumption is true. Everything should work without ground because not everything has grounding power wall sockets. End of story. Bye, Skybuck. |
#9
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Alternatives for ground (for PC's)
"Skybuck Flying" writes:
"Dave Platt" wrote in message news In article me.nl, Skybuck Flying wrote: It does raise the interesting question, why PC's need ground and everything else does not. " Your assumption ("everything else does not") is false. " My assumption is true. Everything should work without ground because not everything has grounding power wall sockets. End of story. I don't suppose there is any remote possibility you might consider actually spending five minutes learning the faintest smidgeon about the topics you post on before you post? Or at least quit using new accounts so you'll quit escaping my killfiles? Didn't think so. |
#10
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Alternatives for ground (for PC's)
In article me.nl,
Skybuck Flying wrote: It does raise the interesting question, why PC's need ground and everything else does not. " Your assumption ("everything else does not") is false. " My assumption is true. Everything should work without ground because not everything has grounding power wall sockets. End of story. Not quite - at least, not if you want a full answer. The answer is this: almost all such devices will "work" without a ground. You could cut off the ground prong of the power cord, plug the remaining two prongs into a non-grounding power wall socket, and the device would "work". It would run. However, it would not work *SAFELY* - at least, not in a legal sense. The device (PC, refrigerator, power tool, etc.) would have lost one of its designed-in safety features - that of a safe grounding of the chassis. If such a device were to develop an internal short circuit when it still had a ground, it would probably blow a fuse or trip a circuit breaker... annoying perhaps, but it would "fail safe". If you cut off or otherwise disable the ground prong on the plug, and the device develops an internal short circuit... the next time you touch it you can get a very severe shock and die. The device will not "fail safe". So, the device will still "work" without a ground... but what it "works on" may be the job of getting ready to kill you. This is why you really should not try to run your PC without a ground. It might have a grudge, and decide to electrocute you if given the opportunity. -- Dave Platt AE6EO Friends of Jade Warrior home page: http://www.radagast.org/jade-warrior I do _not_ wish to receive unsolicited commercial email, and I will boycott any company which has the gall to send me such ads! |
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